Flush plug and receptacle.



PATENTED JULY 3, 1906.

0. E. AVERY. PLUSH PLUG AND REGEPTAGLB.

APPLICATION FILED APR .18, 1904.

wwnaoou UNITED STATES PA E T oEEICE.

CHARLES AVERY, OF J RSEY CITY, NEW JERSEY, ASSIGNOR To MANHATTAN ELECTRICAL SUPPLY COMPANY, AGORPORATION OF NEW JERSEY;

FLUSH PLUG AND'RECEPTACLE.

Specification of Letters .Patent;

Patented July 3, 1906.

Application filed April 18, 1904. Serial No. 203,716-

To all whom it may concern.-

Be it known that 1, CHARLES E, AVERY, a citizen of the United States, and a resident of the city of Jersey Cit Hudsoncounty, New Jersey, haveinvente certain new and useful Improvements in Flush Plugs and Receptacles, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to electric cut-outs, and more es ecially tothe form thereof 1 known as pug-receptacles embodying a receptacle adapted to be supported in a revices.

cess-as in a wall,for instanceand carrying contacts which are connected with the main circuit-wires, a removable plug fitting said receptacle and carrying cooperating contacts which are connected with the conductingwires of a translating device to be connected in the circuit, and a covering-plate for the receptacle provided with a door or doors thrpugh which the conducting-wires are car rie In the drawings, wherein I have illustrated a preferred form of my invention, Figure 1 is a front elevation showing the receptacle and plug. Fig. 2 is a back view of the plate covering the receptacle. Fig. 3 is a vertical, section of the device. Fig. '4 is an enlar edsectional detail on the line 4 4, Fi 2, s owing the manner of connecting the astening de- Fig. 5 is a front elevation showing the end of the plug projecting throughthe coveriIjg-plate, and Fig. 6 is a cross-section of the p ug. 5

Similar reference characters are employed to designate corresponding parts in all the.

views.

. The receptacle 1 is usually made of porcelain and is formed with a central chamber in which are arranged the contacts 2 2. These contacts are of conducting metal, and their bent outer ends are clamped by the screws 4 under the binding-post 5, to which are connected the line-wires which extend throug the assages 6. s

T e plug 14 is also made of porcelain or 5 other non-conducting material and is provided with a central aperture 45. The conducting-wires from the translating device extend through the aperture into the recess 46, formed in the inner end of the plug. as

shown most clearly in Fig." 3. On each side of the plug a channel 15 is formed,in which is secured one of the plug-contacts 16. As

.shown, these plug-contacts are bent back upon themselves so as to be sufficiently resilient to maintain a good contact with the receptacle-contacts 2, and they are held in place by the screws 18, which pass through the plug and secure the plates 19, carrying the binding-screws 20, adjacent to the recess 46 in the inner end of the plug to permit the convenient and secure attachment of, the conductors to the binding-screws.

The Walls of the channels 15 project sufficiently beyond the surfaces of the contacts 16 to form guards 21, Fig. '6, which revent the contacts from touching the metal ic parts of the receptacle or the covering-plate and forming a short circuit when inserting or removing the plug.

Plates 22 are fitted to the face of the receptacle and are provided with slots 23 to receive the screws by which the receptacle is held in place. The plates 22 are also provided withthe inwardly-extending inclined lugs 24, threaded to receive the screws 25.

A plate 27 covers the face ofthe plug. It is provided with a central elliptical aperture which is provided withtwo hinged doors 28, having 0 posed semicircular recesses, through which wli the plug 14, carrying the conducting-wires, projects. The a erture is not necessarily 11! the form of an el ipse, but maybe of any desired shape which will permit the insertion and removal of the plug. It has, however,

referably, an unbroken contour-line free om any offsets for hinge-openings, and the exterior outline of the doors exactly corres onds therewith, so that the appearance of the plate is rendered more attractive while its cost is not increased. In order-to secure this result and a t the same time permit the doors to open to fully uncover the .o ening in the plate, each door is provided wit a hinge member or connection 30, which may be secured to the back of the. door in any suitable manner and projects beyond the edge of the door: Each hinge is loosely mounted upon a pivot 31. These pivots 31 are secured to the Ice I i thus be finished smooth and is left free from verse slots 32 therein, in which the ivots are placed, fittin the slots loosely, an then upsetting, the s" es of the slots, so as to gr1p the pivots and prevent. any movement thereof. The back of the plate 27 is'also provided with recesses v33, WhlCh receive the ends of the hinge members '30 and ermit the pivotal movement thereof,and 1n the recesses are alsosecured the loop-springs 34, the free ends of which bear against the ends of the hinge members 30 when the doors are closed and which by the turning of the hinges on their ivots are brought into engagement with the i ront surface thereof, so that the doors are held in either open or closed position by the springs. I

The hinge members 30 are each provided with a recess 35, into which when the doors are opened the edge of the plate 27 will enter, permitting the doors to be swung outwardly until they are substantially at right angles to the face of the plate, and the movement of the doors is arrested by the engagement of the edge of the door with the plate, as shown in Fig. 3. Thus substantially the full area of the opening is uncovered, furnishing ample room for the insertion of the fingers in ren oving the plug. a The slotted lugs 40 are also secured to the back of the plate 27. These are so located that when the plate is in position over the receptacle the screws 25 will enter the slots 41 in the lugs. The screws may then be tight ened by means of a screw-driver inserted through the openin in the plate 27, and the plate and receptac e are thus securely fastened together. The lugs 40 are referably secured to the plate by means 0 counterj sunk integral studs 42, the'lugs being formed 49 with an apertured' projection which is fitted over the studs, and the ends of the studs are thenupset, clamping the lugsfast to the plate. The springs 34 are secured to the plate in the same manner, and the front of the plate may screw-holes or rivet-heads. Having thusshown and described my invention, what I' claim, as i new, and desire to secure by Letters Patent, is

1; In a plug-receptacle, the combination of a receptacle, a plate covering the same, and cooperating fastenin devices secured tothe bac of the plate an the receptacle and rojecting within the latter for securing the p ate to the receptacle. 1

2. The combination with a lug-receptacle of a plug of insulating materia provided with i an aperture for the conducting-wires extendmg through the plug and terminating in an en arged recess in the inner end of the plug, fastenin devices for the conductors secured to thep ug adjacent to said recess, channels formed on opposite sides of the plug, contacts .secured in said channels to cioperate with the receptacle-contacts, he Walls of said channels projecting above the contacts to form guards for the contacts.

3. In a flush-plug receptacle the combination with the covering-plate, an opening therein having a continuous contour-line, outwardly-swinging doors for the o ening, a hinge member secured to the bac of each door and projecting beyond the edge thereof; a pivot for each door carried at the back of the plate and a recess in the hinge member to receive the edge of the plate when the door is 0 en. 5- j 4. In a flush-plug receptacle the combination with the covering-plate, an, opening therein having a continuous contour-line, outwardly-swinging doors for the 'o ening, a hinge member secured tothe bac of each door and projecting beyond the edge thereof, a pivot for each door carried at the back of the plate and aspririg secured to the plate for. holding the door in open or closed position.

. 5. An electrical receptacle in combination with a lu therefor, said rece tacle being provide with means for direct e ectrical connection with a circuit-wire, contact-springs in electrical connection with said means, said plug being provided with lateral recesses, and a bottom recess, contact-springs secured in said bottom recess, conductor-wires secured to said-contact-springs in said bottom recess 5 and passing centrally throu h said plug.

6. A plug for an electrica receptacle, consisting of a block of insulating material having a peripheral recess extending around two of its sides and bottom, a central aperture passing from the top and terminating in an enlarged cavit in the bottom.

7. The combination of areceptacle,-a covering-plate therefor having hinged, recessed doors, a chamber in said receptacle, contacts in said chamber and means for connecting the same in circuit, aplug consisting of ablock of insulatin material, a tubular projection upon said p ug which projects into the recess in the doors of the covering-plate, an aperture 1 10 extending through said projection and into the plug, an enlarged recess at the inner end of said aperture forming ano ening at the in ner end of the pllug, channe s formed on o posite sides of t e plug, contacts held in said I: 5 channels to 006 erate with the contacts in the receptacle, t e wall of said channels projecting above the contact to form guards for said contacts and. means for securing a conducting-wire'to each of said contacts substan- 1 2o tially as shown and described.

8. The combination of a receptacle, a covering-plate therefor having hinged, recessed doors, a chamber in said receptacle, contacts in-said chamber and means forconnecting 125 the same in circuit,' a plug consisting of a block of insulating material, a tubular projection upon said plu which projects into the recess in the doors 0 the covering-plate, an aperture extending through said projection and 1 0 into the plug, an enlarged recess at the inner end of said aperture forming an openin at the inner end of the plu ,channels for me ono posite sides of the 'p ug, spring-contacts he (1 in said channels to ccoierate with the contacts in the receptacle, t e walls of said channels projecting above the contacts to form guards for said contacts and means for secur- 1n a'conducting-wire to each of said contacts su stantially as shown and described.

CHARLES E. AVERY.

Witnesses RoBT. B. KILLGORE, O. H. HoPwooD. 

